# [Tex/LaTex] unknown language \selectlanguage{english}

languagestexmaker

I'm writing my second document in latex and I'm using my universities template. But since I'm working on an English document and the template is for German papers I have to adjust the language.

...
\begin{document}
\selectlanguage{english}


but it fails with:

! Package babel Error: Unknown language english'. Either you have
(babel) misspelled its name, it has not been installed,
(babel) or you requested it in a previous run. Fix its name,
(babel) install it or just rerun the file, respectively.


I tried to:
sudo apt-get install texlive-lang-english
and even:
sudo apt-get install texlive-lang-all

Any idea how to fix this?

\usepackage[english,ngerman]{babel}

Then ngerman is active at the begin of the document and you can switch to english. If you cannot change the package, then write before \documentclass:
\PassOptionsToPackage{english}{babel}
`